The US Air Force has the medicine for evil-regime deep bunkers.

[william]

Desperate to avoid US air attack in the event of a major war, America’s foes are digging in – literally. China, North Korea and Iran are all building more, and deeper, underground military facilities. And the Pentagon is scrambling to keep up – with new bunker-busting bombs.

The newest of these bombs made a surprise appearance over the Mojave Desert back in March. Photographer Ian Recchio snapped photos of a US Air Force Boeing B-1 bomber refuelling from a USAF KC-135 tanker. There was something unusual under the swing-wing B-1’s forward fuselage: a large bomb.
Aviation expert David Cenciotti was one of the first people to see Recchio’s photos. At first, Cenciotti thought the bomb might be a GBU-31, an unremarkable 2,000-pound satellite-guided bomb. But then he looked closer. It wasn’t a GBU-31. It was a new munition: a rarely-seen 5,000-pound GBU-72 designed to penetrate dirt and rock before exploding. A bunker-buster.

The GBU-72 is special. With its high-tech fuse and extra-hard casing, the satellite-guided bunker-buster is both highly penetrative and relatively small. In other words, it combines the best qualities of the US Air Force’s existing bunker-busters: the 4,000-pound GBU-28 and the 27,000-pound GBU-57.

We don’t know how deep a GBU-72 could dig before it explodes. But “lethality is expected to be substantially higher compared to similar legacy weapons like the GBU-28,” the US Air Force stated, citing James Culliton, the GBU-72 program manager.

Hundreds of American warplanes could carry GBU-72s. During a major war, these planes could go after shallower buried targets while the smaller force of bombers hauling GBU-57s goes after deeper buried targets. In a major war with any of these foes – Iran, North Korea or China – a token force of GBU-57-armed B-2s might be too small to dent the underground infrastructure. And the larger force of fighters carrying GBU-28s might be powerless to penetrate the deeper targets. The GBU-72 should address this dilemma – by arming hundreds of American warplanes with deeper-digging bunker-busters.

MSN

B-1B Bomber Spotted For The First Time Carrying New Bunker Buster Bomb Externally

Photos show the B-1 carrying a large bomb on the forward right hard point. And it looks like it's GBU-72/B, the new 5,000 pound "Bunker Buster". A U.S.

theaviationist.com